Rolando Cretis

Pitching Instructor - Pitching Coach White Sox Buttrio - Rapsodo Certs. | Motor Preferences Coach

[Steve Janssen @Coach_Steve]

Moneyball changed how Baseball evaluates players. Is the next revolution how Baseball evaluates coaches? ❌Can he coach?, ✅Who can he coach? Maybe great coaching isn't universal. Maybe fit matters more! Read - https://t.co/97ad7dF6BA - @jaegersports @ButchBaseball29 #MotorBall

[Steve Janssen @Coach_Steve]

Same coach, Same system, Same message. One pitcher thrives, another breaks down. #Baseball calls it a player problem. What if it's a compatibility problem? The #Coaching Paradox! Read: https://t.co/rAS2XMUUPj - @jaegersports @ButchBaseball29 #MotorBall #MotorPreferences

[Steve Janssen @Coach_Steve]

What if MLB isn't developing players. What if it's selecting survivors? For every player who succeeds, how many disappear because the system wasn't built for them? Different look at #playerdevelopment. Read: https://t.co/aoRVnZpllD - @jaegersports @ButchBaseball29

[Steve Janssen @Coach_Steve]

Every time a coach says, "We need to fix him" An assumption is already being made: Something is broken. But what if it isn't? My latest article explores why "FIX" may be the most dangerous word in #playerdevelopment.
Read: https://t.co/JqMUaPUuq2 - @jaegersports @ButchBaseball29

[Steve Janssen @Coach_Steve]

📢The future problem in #Baseball may not be ignoring #MotorPreferences, but misunderstanding them. Especially once #AI starts amplifying the wrong framework. Read👉https://t.co/NeTlFGe6GC -
@jaegersports @ButchBaseball29

[Steve Janssen @Coach_Steve]

#MLB is starting to talk about #MotorPreferences. But what if #pronation/#supination are being misunderstood from the start? #TrackMan measures the ball. Not the organization producing it. That changes everything. Read👉https://t.co/t0u9cySA2F -@jaegersports @ButchBaseball29

[Steve Janssen @Coach_Steve]

Two pitchers. Same system. Same data. Opposite outcomes! One was corrected. One was understood.
That’s the difference. Full Article👉https://t.co/MTTm3WgYyW - #MotorBall #MotorPreferences #BaseballActionID @jaegersports @ButchBaseball29 @CoachBeede @JMikeMLB @SMerrBullpen

[Steve Janssen @Coach_Steve]

Every pitcher #MLB is developing follows a pattern. You don’t see it. And until you do, you’re not actually developing them. Read👉https://t.co/e0xIZJtwdO #MotorBall #MotorPreferences #BaseballActionID @jaegersports @ButchBaseball29 @CoachBeede @JMikeMLB @SMerrBullpen

[Steve Janssen @Coach_Steve]

#MLB lost $1 billion to pitching injuries in 2025.
Baseball has more data than ever.
So why do pitchers keep breaking?
Maybe the issue isn’t the player.
Maybe it’s the model.
Read👉https://t.co/uauTdU1hIe #MotorBall #MotorPreferences @jaegersports @ButchBaseball29 @JohnMorosi

[Steve Janssen @Coach_Steve]

I heard an #MLB manager explain a struggling pitcher:
“He feels good. It’s just mechanical.” But what if many mechanical issues are created by earlier, so-called mechanical fixes? New article, link in next message👇#MotorBall #MotorPreferences @jaegersports @ButchBaseball29

[Steve Janssen @Coach_Steve]

If It’s Measured, It Must Be True… Right!?
Pitch improves.
Data says it worked.
The body adapts.
Until it can’t.
Numbers describe movement.
Not the human.
Read👉https://t.co/4KfzPOvYdA #MotorBall #MotorPreferences @jaegersports @TrueSandA @ButchBaseball29 @SMerrBullpen @ABCA1945

[Steve Janssen @Coach_Steve]

#MotorBall #MotorPreferences #BaseballActionID
@jaegersports @TrueSandA @ButchBaseball29 @SMerrBullpen @ABCA1945 @RoFlo @MLBNow @PitchingNinja @MLBPlayerAnalys @JeffPassan @mlbinjuryguru @Starting9 @mobilitychick @MLBPerformances

[Steve Janssen @Coach_Steve]

Pitch design is getting better. What if the question isn’t: “How do we design better pitches?” But, “Does this pitch even belong to this pitcher? Read Article👉https://t.co/CbtfQeKlm6 #MotorBall #MotorPreferences @jaegersports @TrueSandA @ButchBaseball29 @SMerrBullpen @ABCA1945

[Steve Janssen @Coach_Steve]

I asked MLB staff 1 question: What would you change in player development? Answers made sense. But something was missing & that might be the real problem - Read Article👉https://t.co/biMQCnhthR #BaseballActionID #MotorBall @jaegersports @TrueSandA @ButchBaseball29 @SMerrBullpen

[Steve Janssen @Coach_Steve]

In baseball, most instruction is built on what we think we know. Not on how the body actually organizes movement. - #BaseballActionID #MotorBall @jaegersports @TrueSandA @ButchBaseball29 @SMerrBullpen @mobilitychick @ICBaseball

[Steve Janssen @Coach_Steve]

Pitch design optimizes pitch shapes. But we still missing the constraint that comes before all of it. Arm slot isn't infinitely adjustable. Pitchers operate within a narrow release window. Outside it? You’re just teaching compensation.#MotorBall @jaegersports @ButchBaseball29

[Steve Janssen @Coach_Steve]

Full 👉article https://t.co/vAXlrcNfey why most pitchers naturally fall into 4 release windows — and what happens when you push them outside it. #MotorBall #WorldBaseballClassic📷 @jaegersports
@TrueSandA @ButchBaseball29 @SMerrBullpen
@mobilitychick @ICBaseball

[Steve Janssen @Coach_Steve]

Full 👉article https://t.co/adZWNKdA9E
Explaining why most pitchers naturally fall into 4 release windows — and what happens when you push them outside it.

[Steve Janssen @Coach_Steve]

Pitch design is optimizing pitch shapes, but we’re missing a key constraint. Arm slot isn’t infinitely adjustable. Most pitchers operate within a narrow window. Outside it? You’re teaching compensation. #MotorBall #WorldBaseballClassic📷@jaegersports @TrueSandA @ButchBaseball29

[Steve Janssen @Coach_Steve]

A pitcher stuck at 87 MPH jumped to 93 MPH.
Didn’t change mechanics, started with organizing the system. Motor Preferences → alignment → velocity.
Read👉https://t.co/6VHj3Fvl09 #MotorBall #WorldBaseballClassic📷@jaegersports @TrueSandA @ButchBaseball29 @SMerrBullpen @ICBaseball